A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5996-01-392-7220
NSN 5965-01-362-9609
NSN 6685-00-208-1736
NSN 5996-01-457-2001
NSN 5975-00-086-2309
NSN 6650-00-548-9797
NSN 5998-01-359-6604
NSN 6110-01-451-2013
NSN 5915-01-525-5895
NSN 6130-01-380-7236
NSN 5965-00-925-1725
NSN 5998-01-044-2035